Formic Acid Is the Active Agent in an Ant Bite

question 19

Multiple Choice

Formic acid is the active agent in an ant bite. What is the ratio of base/acid for formic acid (pK_a 3.9) in the blood stream at pH 7.4?

• A)3.16 * 10^-4
• B)3.16 * 10³
• C)3.5
• D)0.54
• E)1.90

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